Surname Гейсар (Гейсар 
, Geysar 
, Gheisar 
) , all around the world, is a very rare cognomen. The family name Гейсар is habitual in Iran, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Very seldom, Гейсар is the forename as well as the last name.